body {
  font-family: 'Helvetica Neue', Arial, sans-serif;
  line-height: 1.6;
  margin: 0;
  padding: 20px;
  background-color: #f8f9fa;
}

.container {
  max-width: 1200px;
  margin: 0 auto;
  padding: 20px;
  background-color: white;
  border-radius: 8px;
  box-shadow: 0 2px 10px rgba(0, 0, 0, 0.1);
}

h1 {
  color: #333;
  margin-bottom: 20px;
}

.section {
  margin-bottom: 30px;
  padding: 20px;
  border: 1px solid #eee;
  border-radius: 6px;
}

h2 {
  color: #555;
  margin-top: 0;
  margin-bottom: 15px;
}

button {
  background-color: #4285f4;
  color: white;
  border: none;
  padding: 10px 15px;
  border-radius: 4px;
  cursor: pointer;
  transition: background-color 0.2s;
  margin-right: 10px;
}

button:hover {
  background-color: #3367d6;
}

button:disabled {
  background-color: #ccc;
  cursor: not-allowed;
}

input[type="file"] {
  margin-bottom: 15px;
}

table {
  width: 100%;
  border-collapse: collapse;
  margin-top: 15px;
}

table, th, td {
  border: 1px solid #ddd;
}

th, td {
  padding: 8px;
  text-align: left;
}

th {
  background-color: #f2f2f2;
}

tr:nth-child(even) {
  background-color: #f9f9f9;
}

pre {
  background-color: #f5f5f5;
  padding: 10px;
  border-radius: 4px;
  overflow-x: auto;
}

.error {
  color: #d9534f;
  margin-top: 10px;
}

.success {
  color: #5cb85c;
  margin-top: 10px;
}
